Magnetic properties of LaMnO3+δ nanocrystals in MCM-41 mesoporous silica

H. Kira, H. Tamura, Y. Ando, M. Onodera, H. Nakao, Y. Murakami, K. Tsuda, Kenji Ohoyama, S. Yamazaki, T. Tajiri, H. Deguchi

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

The LaMnO3+δ crystal has successfully been synthesized in a mesoporous silica MCM-41 by an improvement in the impregnation method. X-ray diffraction measurement has revealed that the crystal has a rhombohedral structure and the average particle size is about 9.5 nm. Ferromagnetic behavior with a hysteresis of the magnetization curve was observed below T=280 K; however, the magnetization is not saturated up to H=7 T at T=5 K. These results suggest that ferromagnetic and antiferromagnetic regions coexist in the sample.

Original languageEnglish
Pages (from-to)2480-2482
Number of pages3
JournalJournal of Magnetism and Magnetic Materials
Volume310
Issue number2 SUPPL. PART 3
DOIs
Publication statusPublished - 2007 Mar 1

Keywords

  • Lanthanum manganite
  • Magnetic property
  • Nanocrystal
  • X-ray diffraction

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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